The action that directly resulted in fighting between U. S. forces and the
Mexican Army was

A) President Polk sending John Slidell to Mexico

B) Polk's order to move troops across the Nueces River.

C) Texas Rangers scouting along the Rio Grande

D) American merchants expanding trade into Mexico

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation:

hilary clinton

explanation:

trump won the popular vote and ended up becoming the president in 2016 because of this and the electoral college.

hi there!

question - in the 1900s there were two competing views about the environment that often pitted industrialist and conservationist against one another. how were these two competing views demonstrated by the environmental policies of president roosevelt and president taft?

hope this : )

(1) university of virginia: its a colonial heritage was founded in 1819 by declaration of independence author and former president thomas -charlottesville, virginia, united

(2) yellowstone national park is an american national park located in wyoming,montana and idaho and is a colonial heritage site.it was established by us congress and signed into law by president ulysses g grant on march 1,1872.yellowstone is usa's and world's first national park and a heritage site.the park is also known for its wildlife and its geothermal geysers.

(3) yosemite national park: : : colonial heritage site in north in western sierra nevada of central was designated a world heritage site in 1984..it is famous for its granite cliffs,waterfalls,clear streams,giant sequoia groves,lakes,mountains,glaciers and biological

(4) grand canyon national park: : colonial heritage site in north in north western arizona and is 15th site declared as national park..the park's central feature is the grand canyon, a gorge of the colorado river,which is also considered one of the wonders of the world.the park covers 1217262 acres.the grand canyon was designated a world heritage site in by unesco in 1979.

(5) taos pueblo

(6) redwood national park

(7) cahokia mounds

(8) wrangell-st. elias national park

(9) glacier bay national park

(10) kluane national park

(11) tatshenshini-alsek provincial park

(12) mammoth cave national park

(13) olympic national park

(14) great smoky mountains national park

(15) quebec city

(16) everglades national park

(17) lunenburg, nova scotia

(18) glacier national park

(19)chichen itza